Trax Play New Upgraded Live Outdoor GPS Tracker for Children & Pets, Blue Trax Play notifies you whenever it leaves the designated safe zone and you can track its location directly from your smartphone Works in more than 40 countries worldwide to track your child or pets location anywhere you get mobile cellular service; purchase of data plan required upon purchase Full featured smartphone app (iOS & Android) offering unlimited sharing & following, speed alerts, augmented reality, geofences and on demand notifications Durable, and water and dust resistant, Trax Play withstands temperatures between -10 DegreeC to +40 DegreeC, with reliable outdoor GPS tracking The Trax Play unit connects to the 2G T-Mobile network in the US. Please see orion.freeus.com/coverage-map.aspx to see if your area is supported or visit the Help Me section on our website traxfamily.com for more information